As long as it fires one barrel at a time, it would be legal to possess in all free states. (I doubt it would be legal in Cali or any of the other commie states). But if it were capable of firing more than one round with a single pull of the trigger it would be considered a machinegun according to the NFA and since it was never registered as such in this country before 1986, it would've been illegal to possess by us mortals.Oh, I didn't think to mention it in my first post. Several have speculated that it must fire all three barrels at once. It does not. It fires but one barrel at a time. It has a very complex firing system. It's something about the Europeans. They rarely do anything simple.